﻿.grid .simplesection div.msgrid {
    display: -ms-grid;
    -ms-grid-columns: 250px 250px;
    -ms-grid-rows: 250px 250px;
}

.grid .simplesection div.msgrid > div {
    border: 1px solid gray;
}
.grid .simplesection div.msgrid > div:nth-child(2) { -ms-grid-column: 2; -ms-grid-row: 1; }
.grid .simplesection div.msgrid > div:nth-child(3) { -ms-grid-row: 2; }
.grid .simplesection div.msgrid > div:nth-child(4) { -ms-grid-column: 2; -ms-grid-row: 2; }